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Heat and Mass Transfer

Heat and Mass Transfer
Heat is closely related with

Entropy
Liquids
Temperature
Energy

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Heat and Mass Transfer
Heat transfer by radiation mainly depends upon

Its temperature
All of these
Kind and extent of its surface
Nature of the body

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Heat and Mass Transfer
Which of the following is a case of steady state heat transfer?

Heating of building in winter
Air preheaters
None of these
I.C. engine

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Heat and Mass Transfer
The most commonly used method for the design of duct size is the

Velocity reduction method
Static regains method
Equal friction method
Dual or double method

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Heat and Mass Transfer
Depending on the radiating properties, body will be transparent when(Where a = absorptivity, p = reflectivity, x = transmissivity)

P = 0, x = 0 and a = 1
P=1, x = 0, and a = 0
P = 0, x= 1, and a = 0
X = 0, a + p = 1

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Heat and Mass Transfer
The critical temperature is the temperature

Above which a gas will never liquefied
Below which a gas does not obey gas laws
Below which a gas is always liquefied
Above which a gas may explode

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MORE MCQ ON Heat and Mass Transfer

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